A Journal of Pediatrics March 2005 review of herbs and botanicals for kids shows
# evening primrose seed oil may change essential fatty acid and prostaglandin metabolism in children with diabetes.
# it is unknown whether the oil may prevent diabetic vascular complications.
# garlic extract therapy, given to kids whos parents and siblings have high cholesterol and triglyceride levels, does not have significant effect on risk factors for heart disease.

Both diabetes and hyperlipidemia are diseases of overweight. Both can be prevented–and treated–with what you eat.